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本文应用氧同位素和电子探针分析方法测定了北秦岭松树沟阿尔卑斯型超镁铁岩体接触变质带内角闪岩和及其原岩秦岭群斜长角闪片岩的形成温度．角闪岩的角闪石－石榴子石Ｆｅ－Ｍｇ配分温度计给出不同期次形成温度分别是：早期８１５～８５５℃，主期７００～７７０℃．矿物对氧同位素地质测温结果得到，角闪岩的主期变质温度为７４５～７７０℃，与其电子探针结果在误差范围内一致；斜长角闪片岩为５００～６０５℃，代表了秦岭群区域变质温度
In this paper, the formation temperature of the amphibolite in the contact metamorphic belt of the Songshugou alpine ultramafite in the North Qinling and its protolith from the Qinling group of protolith in the Qinling Mountains were measured by the method of oxygen isotope and electron probe analysis. The amphibole-garnetite Fe-Mg fractional thermometers of amphibolite give different formation temperatures of 815 ~ 855 ℃ in early stage and 700 ~ 770 ℃ in main stage. The result of geothermometry of oxygen isotopes shows that the main metamorphic temperature of amphibolite is from 745 ℃ to 770 ℃, which is consistent with the results of its electronic probe within the error range. The plagioclase amphibole is 500 ~ 605 ℃, representing the Qinling Mountains Regional metamorphic temperature